
TMXF28155 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Preliminary Data Sheet, Rev. 1
October 2000
368
Lucent Technologies Inc.
M13 Mux/Demux Block Functional Description
(continued)
M13 Block Register Descriptions
(continued)
Table 259. M13_CONTROL1, Control 1 (One Shot R/W)
Table 260. M13_CONTROL2, Control 2 (R/W)
Address
Bit
Name
Function
Reset
Default
0x000
0
0x1005A
15:3
2
—
Reserved.
If M13_RDL_FRM_CLR is set to 1, the portion of the earli-
est frame still in the receive HDLC FIFO will be deleted.
The user must reset M13_RDL_FRM_CLR before another
frame can be deleted. If M13_RDL_FRM_CLR is set before
the closing flag of the frame currently being read from the
FIFO has been received, all subsequent bytes of the frame
will be discarded without being written into the FIFO.
M13_DS3_FORCE_OOF When this bit transitions from 0 to 1, the DS3 framer is
forced out-of-frame.
M13_BIPOL_ERR
A single bipolar violation error is transmitted each time this
bit transitions from 0 to 1.
M13_RDL_FRM_CLR
1
0
0
0
Address
Bit
Name
Function
Reset
Default
0x00
0
0x1005C 15:8
—
Reserved.
If this bit is 1, the
SMPR_RDS3NEG_BPV
input is used as an
external B3ZS bipolar violation indication instead of a negative
input pulse.
The M23 multiplexer uses the
SMPR_TDS3CLK
if this bit is 0,
otherwise, the
SMPR_RDS3CLK
is used.
M13_LOOP_T_TO_R Setting this bit to 1 causes the M23 MUX output to be looped
back to the M23 DEMUX input.
M13_LOOP_R_TO_T Setting this bit to 1 causes the received DS3 input to be
looped back to the transmit DS3 output.
M13_AUTO_AIS_LOF If this bit is 1, the M13 will automatically insert AIS in all DS2
outputs of the M23 demultiplexer when M13_DS3_LOF = 1
(Table 225), and it will automatically insert AIS in all DS1 or E1
outputs of M12 demultiplexer y when M13_DS2_LOFy = 1
(Table 242).
M13_AUTO_AIS_OOF If this bit is 1, the M13 will automatically insert AIS in all DS2
outputs of the M23 demultiplexer when M13_DS3_OOF = 1
(Table 225), and it will automatically insert AIS in all DS1 or E1
outputs of M12 demultiplexer y when M13_DS2_OOFy = 1
(Table 241).
M13_AUTO_FLB
If this bit is 1, the device will automatically loop the received
DS3 input to the transmit DS3 output when
M13_DS3_FLB_DET = 1 (Table 252), and it will automatically
select DS1/E1 output xfrom an M12 demultiplexer in place of
the DS1/E1 output from input selector xwhen
M13_DS1_FEAC_LB_DETx = 1 (Table 252).
M13_AUTO_LB
When M13_AUTO_LB = 1, loopback of DS1 channel x is acti-
vated if M13_DS1_LB_DETx = 1 (Table 250).
7
M13_BPV_IN
6
M13_LOOP_TIME
0
5
0
4
0
3
1
2
1
1
0
0
0